A novel "off-on" peptide fluorescent probe for the detection of copper and sulphur ions in living cells
New J. Chem., 2024, Accepted Manuscript DOI: 10.1039/D3NJ05888C, Paperxuejiao wang, Jiang Zhou, Liangchao Yuan, Jingcheng Hou, jiang wu, Pengcheng Lin The detection of copper ions and hydrogen sulfide with high sensitivity and selectivity has become a research priority as they play a crucial role in physiopathological processes both in the... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - New J. Chem. latest articles)
Source: RSC - New J. Chem. latest articles - February 19, 2024 Category: Chemistry Authors: xuejiao wang Source Type: research
Sulphur-Boosted Active Hydrogen on Copper for Enhanced Electrocatalytic Nitrate-to-Ammonia Selectivity
Angew Chem Int Ed Engl. 2024 Feb 19:e202400289. doi: 10.1002/anie.202400289. Online ahead of print.ABSTRACTElectrocatalytic nitrate reduction to ammonia is a promising approach in term of pollutant appreciation. Cu-based catalysts performs a leading-edge advantage for nitrate reduction due to its favorable adsorption with *NO3. However, the formation of active hydrogen (*H) on Cu surface is difficult and insufficient, leading to the significant generation of by-product NO2-. Herein, sulphur doped Cu (Cu-S) is prepared via an electrochemical conversion strategy and used for nitrate electroreduction. The high Faradaic effici...
Source: Angewandte Chemie - February 19, 2024 Category: Chemistry Authors: Yue Xu Chuanqi Cheng Jiewei Zhu Bin Zhang Yuting Wang Yifu Yu Source Type: research
Sulphur-Boosted Active Hydrogen on Copper for Enhanced Electrocatalytic Nitrate-to-Ammonia Selectivity
Angew Chem Int Ed Engl. 2024 Feb 19:e202400289. doi: 10.1002/anie.202400289. Online ahead of print.ABSTRACTElectrocatalytic nitrate reduction to ammonia is a promising approach in term of pollutant appreciation. Cu-based catalysts performs a leading-edge advantage for nitrate reduction due to its favorable adsorption with *NO3. However, the formation of active hydrogen (*H) on Cu surface is difficult and insufficient, leading to the significant generation of by-product NO2-. Herein, sulphur doped Cu (Cu-S) is prepared via an electrochemical conversion strategy and used for nitrate electroreduction. The high Faradaic effici...
Source: Angewandte Chemie - February 19, 2024 Category: Chemistry Authors: Yue Xu Chuanqi Cheng Jiewei Zhu Bin Zhang Yuting Wang Yifu Yu Source Type: research
Chronic aquatic toxicity assessment of diverse chemicals on Daphnia magna using QSAR and chemical read-across
Regul Toxicol Pharmacol. 2024 Feb 5;148:105572. doi: 10.1016/j.yrtph.2024.105572. Online ahead of print.ABSTRACTWe have modeled here chronic Daphnia toxicity taking pNOEC (negative logarithm of no observed effect concentration in mM) and pEC50 (negative logarithm of half-maximal effective concentration in mM) as endpoints using QSAR and chemical read-across approaches. The QSAR models were developed by strictly obeying the OECD guidelines and were found to be reliable, predictive, accurate, and robust. From the selected features in the developed models, we have found that an increase in lipophilicity and saturation, the pr...
Source: Regulatory Toxicology and Pharmacology : RTP - February 7, 2024 Category: Toxicology Authors: Ankur Kumar Vinay Kumar Probir Kumar Ojha Kunal Roy Source Type: research
Structure characterization of aged automobile exhaust catalysts using electron probe microanalysis
In this study, an aged high-mileage automobile exhaust catalyst with Pd and Rh active phases supported on a cerium zirconium oxide doped alumina coating on cordierite was analysed; six consecutive monolithic blocks along the inlet to the outlet of the aged catalyst were extracted, and the corresponding metallographic samples were fabricated using the vacuum impregnation resin method. The purpose of this study was to accurately characterize the different regions of the monolith via electron probe microanalysis and to infer potential causes of catalyst deactivation. Two major causes of deactivation were found: (1) aggregatio...
Source: Analytica Chimica Acta - February 3, 2024 Category: Chemistry Authors: Longchun Bian Changhua Hu Qiue Cao Source Type: research
Oxadiazole Derivatives of Diclofenac as an Anti-proliferative Agent for B-cell Non-Hodgkin Lymphoma: An In vitro and In Silico Studies
CONCLUSION: The compound (II) can be a potential therapeutic candidate for B-cell non-Hodgkin lymphoma and deserves further development as a novel anti-lymphoma agent.PMID:38279758 | DOI:10.2174/0115734064290905231228110023 (Source: Medicinal Chemistry)
Source: Medicinal Chemistry - January 27, 2024 Category: Chemistry Authors: Shaista Qayyum Almas Jabeen Sajda Ashraf Faiza Seraj Khalid Mohammad Khan Rafat Ali Siddiqui None Zaheer Ul-Haq Source Type: research
Comparative analysis reveals the trivial role of MsrP in defending oxidative stress and virulence of Salmonella Typhimurium in mice
Free Radic Biol Med. 2024 Mar;213:322-326. doi: 10.1016/j.freeradbiomed.2024.01.020. Epub 2024 Jan 21.ABSTRACTSulphur containing amino acids, methionine and cysteine are highly prone to oxidation. Reduction of oxidized methionine (Met-SO) residues to methionine (Met) by methionine sulfoxide reductases (Msrs) enhances the survival of bacterial pathogens under oxidative stress conditions. S. Typhimurium encodes two types (cytoplasmic and periplasmic) of Msrs. Periplasmic proteins, due to their location are highly vulnerable to host-generated oxidants. Therefore, the periplasmic Msr (MsrP) mediated repair (as compared to the ...
Source: Free Radical Biology and Medicine - January 23, 2024 Category: Biology Authors: Hari Balaji Chandra L Lalhmangaihzuali Arijit Shome Raj Sahoo Karuna Irungbam Manish Mahawar Source Type: research
Sulphur Amino Acids: How Important is it to Set Reference Ranges for Each Population?
CONCLUSION: Our results showed significant differences in tHcy and tγ-Glu-Cys levels across both age groups, which increased and decreased with age, respectively. It is interesting to highlight that in the 17-year-old group, tHcy and tγ-Glu-Cys levels were higher in males than in females. These observations showed that age and gender influence plasma levels of thiols, which may impact cellular oxidative status. In conclusion, setting age and gender distinct ranges for each specific population is of utmost importance for understanding disease mechanisms and the effectiveness of therapeutic interventions.PMID:38243971 | DO...
Source: Endocrine, Metabolic and Immune Disorders Drug Targets - January 20, 2024 Category: Endocrinology Authors: Helena Caldeira Ara újo Cristina Florindo Alexandra Gomes Jo ão Caio Rita Castro Isabel Rivera Source Type: research
Sulphur Amino Acids: How Important is it to Set Reference Ranges for Each Population?
CONCLUSION: Our results showed significant differences in tHcy and tγ-Glu-Cys levels across both age groups, which increased and decreased with age, respectively. It is interesting to highlight that in the 17-year-old group, tHcy and tγ-Glu-Cys levels were higher in males than in females. These observations showed that age and gender influence plasma levels of thiols, which may impact cellular oxidative status. In conclusion, setting age and gender distinct ranges for each specific population is of utmost importance for understanding disease mechanisms and the effectiveness of therapeutic interventions.PMID:38243971 | DO...
Source: Endocrine, Metabolic and Immune Disorders Drug Targets - January 20, 2024 Category: Drugs & Pharmacology Authors: Helena Caldeira Ara újo Cristina Florindo Alexandra Gomes Jo ão Caio Rita Castro Isabel Rivera Source Type: research
Foveal-Sparing ILM Peeling with ILM Flap Transposition over the Macular Hole for Repair of Full-Thickness Macular Holes
CONCLUSIONS: A combination of foveal-sparing ILM peeling with ILM flap techniques was shown to be a safe and effective surgical option for patients with full-thickness macular holes, resulting in a high macular hole closure rate and improvement in visual acuity in the majority of patients.PMID:38242161 | DOI:10.1055/a-2217-2568 (Source: Klinische Monatsblatter fur Augenheilkunde)
Source: Klinische Monatsblatter fur Augenheilkunde - January 19, 2024 Category: Opthalmology Authors: Christoph Leisser Oliver Findl Source Type: research
Sulphur-induced structural rearrangement in the self-sensitization photo-oxidation behaviour of phenothiazine-imidazole molecules
Chem. Commun., 2024, Accepted Manuscript DOI: 10.1039/D3CC06031D, CommunicationJianai Chen, Haiyang Wang, Yue Yu, Jin Liu, Fengyi Zhao, Weijun Li, Yujie Dong A green photo-oxidation reaction was discovered in which the imidazole ring is oxidized and rearranged to generate imidazolinone derivatives with thermal activation delayed fluorescence properties. The excellent photo-oxidation properties of... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - January 17, 2024 Category: Chemistry Authors: Jianai Chen Source Type: research
Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b
Nature, Published online: 17 January 2024; doi:10.1038/s41586-024-07040-9Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b (Source: Nature AOP)
Source: Nature AOP - January 17, 2024 Category: Research Authors: Diana Powell Adina D. Feinstein Elspeth K. H. Lee Michael Zhang Shang-Min Tsai Jake Taylor James Kirk Taylor Bell Joanna K. Barstow Peter Gao Jacob L. Bean Jasmina Blecic Katy L. Chubb Ian J. M. Crossfield Sean Jordan Daniel Kitzmann Sarah E. Moran Giusep Source Type: research
Lemon essential oil nanoemulsions: Potential natural inhibitors against Escherichia coli
In conclusion, LEO-NEs had potential application as a natural antibacterial agent for the control of E. coli in the food industry.PMID:38225037 | DOI:10.1016/j.fm.2023.104459 (Source: Food Microbiology)
Source: Food Microbiology - January 15, 2024 Category: Food Science Authors: Wenbin Xiao Zhipeng Gao Ting Liu Weiming Zhong Sifan Jiang Mingwang He Fuhua Fu Gaoyang Li Donglin Su Jiajing Guo Yang Shan Source Type: research
Lemon essential oil nanoemulsions: Potential natural inhibitors against Escherichia coli
In conclusion, LEO-NEs had potential application as a natural antibacterial agent for the control of E. coli in the food industry.PMID:38225037 | DOI:10.1016/j.fm.2023.104459 (Source: Food Microbiology)
Source: Food Microbiology - January 15, 2024 Category: Food Science Authors: Wenbin Xiao Zhipeng Gao Ting Liu Weiming Zhong Sifan Jiang Mingwang He Fuhua Fu Gaoyang Li Donglin Su Jiajing Guo Yang Shan Source Type: research
Lemon essential oil nanoemulsions: Potential natural inhibitors against Escherichia coli
In conclusion, LEO-NEs had potential application as a natural antibacterial agent for the control of E. coli in the food industry.PMID:38225037 | DOI:10.1016/j.fm.2023.104459 (Source: Food Microbiology)
Source: Food Microbiology - January 15, 2024 Category: Food Science Authors: Wenbin Xiao Zhipeng Gao Ting Liu Weiming Zhong Sifan Jiang Mingwang He Fuhua Fu Gaoyang Li Donglin Su Jiajing Guo Yang Shan Source Type: research
